Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
  • A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
  • A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals

Definitions

• the present invention relates to a novel herbicidal composition
• a herbicidal composition comprising a herbicidal active ingredient combination that is suitable for the selective control of weeds in crops of useful plants, for example in crops of cereals, rape, sugar beet, sugar cane, plantation crops, rice, cotton and especially maize and soybeans.
• the invention relates also to a method of controlling weeds in crops of useful plants and to the use of the novel composition for that purpose.
• R 2 is methyl, methoxy or --OCHF 2
• R 3 is methyl or --OCHF 2
• E is ⁇ CH-- or ⁇ N--, with E being ⁇ N-- when R 2 is methoxy,
• a novel composition for the selective control of weeds which, in addition to customary formulation adjuvants, comprises as active ingredient at least one compound of formula I ##STR5## --OCHF 2 , R 3 is methyl or --OCHF 2 and E is ⁇ CH-- or ⁇ N--, with E being ⁇ N-- when R 2 is methoxy, or an agrochemically acceptable salt of at least one of the compounds of formula I, and a compound of formula II ##STR6## or an agrochemically acceptable salt of the compound of formula II and/or III, in admixture with one another.
• Examples of agrochemically acceptable salts of the compound of formula I are given in the afore-mentioned EP-A-84 020, EP-A-496 701 and EP-A-120 814, in each case on page 4.
• the amines described therein and also alkali metal hydroxides and ammonium hydroxide are likewise examples of suitable salt-forming agents for the compounds of formulae II and III.
• the herbicide mixture according to the invention can be used against a large number of agronomically important weeds, such as Veronica, Galium, Papaver, Solanum, Chenopodium, Amaranthus, Xanthium, Abutilon, Ambrosia, Sagitaria, Ipomoea, Cassiastora, Datura stramonium, Sesbania exaltata and Sida spinosa, in crops of useful plants, especially in crops of maize and soybeans.
• agronomically important weeds such as Veronica, Galium, Papaver, Solanum, Chenopodium, Amaranthus, Xanthium, Abutilon, Ambrosia, Sagitaria, Ipomoea, Cassiastora, Datura stramonium, Sesbania exalicide and Sida spinosa
• compositions according to the invention are suitable for all methods of application customary in agriculture, for example pre-emergence application, post-emergence application, which is preferred, and seed dressing.
• the herbicide mixture according to the invention is suitable especially for controlling weeds in crops of useful plants such as cereals, rape, sugar beet, sugar cane, plantation crops, rice, cotton and especially maize and soybeans.
• Crops are to be understood as including those crops which have been made tolerant to herbicides or classes of herbicide, for example to glyphosates or gluphosinates, by conventional methods of breeding or gene technology.
• the active ingredient combination according to the invention comprises the compound or compounds of formula I and the compound of formula II and/or III in any desired mixture ratio, generally with an excess of one component over the other.
• Preferred mixture ratios between the compound(s) of formula I and the mixing partner(s) of formula II and/or III are generally from 1:20 to 1:5.
• compositions according to the invention preferably comprise as compound of formula I a compound of formula Ia ##STR7##
• compositions comprise a compound of formula Ia, Ib or Ic and the compound of formula II and/or III. Of those, compositions comprising a compound of formula Ia, Ib or Ic and the compound of formula II or III are especially suitable.
• the rate of application may vary within wide limits and depends upon the nature of the soil, the type of use (pre- or post-emergence; seed dressing; application to the seed furrow; no tillage application, etc.), the crop plant, the weed to be controlled, the prevailing climatic conditions and other factors determined by the type of use, time of use and target crop.
• the active ingredient mixture according to the invention can be applied at a rate of application of from 250 to 2500 g, especially from 500 to 1000 g, active ingredient mixture/ha.
• the compound or compounds of formula I is/are present in a ratio by weight of from 1:100 to 1:0.001 with respect to the compound of formula II and/or III.
• the mixtures of the compound or compounds of formula I with the compound of formula II and/or III may be used in unmodified form, that is to say as obtained in the synthesis, but they are preferably formulated in customary manner together with the adjuvants customarily employed in formulation technology e.g. into directly sprayable or dilutable solutions, dilute emulsions, wettable powders, soluble powders, dusts, granules or micro-capsules.
• the methods of application such as spraying, atomising, dusting, wetting, scattering or pouring, are chosen in accordance with the intended objectives and the prevailing circumstances.
• compositions, preparations or mixtures comprising the compounds (active ingredients) of formulae I and II and/or III and, where appropriate, one or more solid or liquid formulation adjuvants are prepared in a manner known per se, e.g. by homogeneously mixing and/or grinding the active ingredients with the formulation adjuvants, e.g. solvents or solid carriers. It is also possible to use surface-active compounds (surfactants) in the preparation of the formulations.
• formulation adjuvants e.g. solvents or solid carriers.
• surfactants surface-active compounds
• Suitable solvents are: aromatic hydrocarbons, preferably the fractions containing 8 to 12 carbon atoms, such as mixtures of alkylbenzenes, e.g. xylene mixtures or alkylated naphthalenes; aliphatic and cycloaliphatic hydrocarbons, such as paraffins, cyclohexane or tetrahydronaphthalene; alcohols, such as ethanol, propanol or butanol; glycols and their ethers and esters, such as propylene glycol or dipropylene glycol ether; ketones, such as cyclohexanone, isophorone or diacetone alcohol; strongly polar solvents, such as N-methyl-2-pyrrolidone, dimethyl sulfoxide or water; vegetable oils and esters thereof, such as rape oil, castor oil or soybean oil; and, where appropriate, also silicone oils.
• aromatic hydrocarbons preferably the fractions containing 8 to 12 carbon atoms, such
• the solid carriers used are normally natural mineral fillers, such as calcite, talcum, kaolin, montmorillonite or attapulgite.
• calcite talcum
• kaolin kaolin
• montmorillonite attapulgite
• highly dispersed silicic acid or highly dispersed absorbent polymers e.g., calcite, talcum, kaolin, montmorillonite or attapulgite.
• Suitable granulated adsorptive carriers are porous types, for example pumice, broken brick, sepiolite or bentonite, and suitable nonsorbent carriers are, for example, calcite or sand.
• pregranulated materials of inorganic or organic nature can be used, e.g. especially dolomite or pulverised plant residues.
• suitable surface-active compounds are non-ionic, cationic and/or anionic surfactants having good emulsifying, dispersing and wetting properties.
• surfactants will also be understood as comprising mixtures of surfactants.
• Both water-soluble soaps and water-soluble synthetic surface-active compounds are suitable anionic surfactants.
• Suitable soaps are the alkali metal salts, alkaline earth metal salts or unsubstituted or substituted ammonium salts of higher fatty acids (C 10 -C 22 ), e.g. the sodium or potassium salts of oleic or stearic acid, or of natural fatty acid mixtures which can be obtained e.g. from coconut oil or tallow oil. Mention may also be made of fatty acid methyltaurin salts.
• fatty alcohol sulfonates especially fatty alcohol sulfonates, fatty alcohol sulfates, sulfonated benzimidazole derivatives or alkylaryl-sulfonates.
• the fatty alcohol sulfonates or sulfates are usually in the form of alkali metal salts, alkaline earth metal salts or unsubstituted or substituted ammonium salts and contain a C 8 -C 22 alkyl radical, which also includes the alkyl moiety of acyl radicals, e.g. the sodium or calcium salt of lignosulfonic acid, of dodecyl sulfate or of a mixture of fatty alcohol sulfates obtained from natural fatty acids.
• These compounds also comprise the salts of sulfated and sulfonated fatty alcohol/ethylene oxide adducts.
• the sulfonated benzimidazole derivatives preferably contain two sulfonic acid groups and one fatty acid radical containing 8 to 22 carbon atoms.
• alkylarylsulfonates are the sodium, calcium or triethanolamine salts of dodecylbenzenesulfonic acid, dibutylnaphthalenesulfonic acid, or of a condensate of naphthalenesulfonic acid and formaldehyde.
• corresponding phosphates e.g. salts of the phosphoric acid ester of an adduct of p-nonylphenol with 4 to 14 mol of ethylene oxide, or phospholipids.
• Non-ionic surfactants are preferably polyglycol ether derivatives of aliphatic or cycloaliphatic alcohols, saturated or unsaturated fatty acids and alkylphenols, said derivatives containing 3 to 30 glycol ether groups and 8 to 20 carbon atoms in the (aliphatic) hydrocarbon moiety and 6 to 18 carbon atoms in the alkyl moiety of the alkylphenols.
• non-ionic surfactants are the water-soluble adducts of polyethylene oxide with polypropylene glycol, ethylenediaminopolypropylene glycol and alkylpolypropylene glycol containing 1 to 10 carbon atoms in the alkyl chain, which adducts contain 20 to 250 ethylene glycol ether groups and 10 to 100 propylene glycol ether groups. These compounds usually contain 1 to 5 ethylene glycol units per propylene glycol unit.
• non-ionic surfactants are nonylphenol polyethoxyethanols, castor oil polyglycol ethers, polypropylene/polyethylene oxide adducts, tributylphenoxypolyethoxyethanol, polyethylene glycol and octylphenoxypolyethoxyethanol.
• Fatty acid esters of polyoxyethylene sorbitan e.g. polyoxyethylene sorbitan trioleate, are also suitable non-ionic surfactants.
• Cationic surfactants are preferably quaternary ammonium salts which contain, as N-substituent, at least one C 8 -C 22 alkyl radical and, as further substituents, unsubstituted or halogenated lower alkyl, benzyl or hydroxy-lower alkyl radicals.
• the salts are preferably in the form of halides, methyl sulfates or ethyl sulfates, e.g. stearyltrimethylammonium chloride or benzyldi(2-chloroethyl)ethylammonium bromide.
• the herbicidal compositions usually comprise 0.1 to 99%, preferably 0.1 to 95%, of an active ingredient mixture of the compound(s) of formula I with the compound of formula II and/or III, 1 to 99% of a solid or liquid adjuvant, and 0 to 25%, preferably 0.1 to 25%, of a surfactant.
• compositions may also comprise further auxiliaries, such as stabilisers, e.g. vegetable oils or epoxidised vegetable oils (epoxidised coconut oil, rape oil or soybean oil), anti-foams, e.g. silicone oil, preservatives, viscosity regulators, binders and tackifiers, as well as fertilisers or other active ingredients.
• stabilisers e.g. vegetable oils or epoxidised vegetable oils (epoxidised coconut oil, rape oil or soybean oil)
• anti-foams e.g. silicone oil
• preservatives e.g. silicone oil
• viscosity regulators e.g. binders and tackifiers
• Preferred formulations have especially the following composition (throughout, percentages are by weight):
• active ingredient mixture 1 to 90%, preferably 5 to 20%
• surface-active agent 1 to 30%, preferably 10 to 20%
• liquid carrier 5 to 94%, preferably 70 to 85%
• active ingredient mixture 0.1 to 10%, preferably 0.1 to 5% solid carrier: 99.9 to 90%, preferably 99.9 to 99%
• active ingredient mixture 5 to 75%, preferably 10 to 50%
• surface-active agent 1 to 40%, preferably 2 to 30%
• active ingredient mixture 0.5 to 90%, preferably 1 to 80%
• surface-active agent 0.5 to 20%, preferably 1 to 15%
• solid carrier 5 to 95%, preferably 15 to 90%
• active ingredient mixture 0.1 to 30%, preferably 0.1 to 15%
• solid carrier 99.5 to 70%, preferably 97 to 85%
• Emulsions of any desired concentration can be obtained from such concentrates by dilution with water.
• the active ingredient is thoroughly mixed with the adjuvants and the mixture is thoroughly ground in a suitable mill, affording wettable powders which can be diluted with water to give suspensions of any desired concentration.
• the active ingredient is dissolved in methylene chloride and the solution is sprayed onto the carrier, and the solvent is subsequently evaporated off in vacuo.
• the finely ground active ingredient is uniformly applied, in a mixer, to the carrier moistened with polyethylene glycol.
• Non-dusty coated granules are obtained in this manner.
• the active ingredient is mixed and ground with the adjuvants, and the mixture is moistened with water.
• the mixture is extruded and then dried in a stream of air.
• Ready-for-use dusts are obtained by mixing the active ingredient with the carriers, and grinding the mixture in a suitable mill.
• the finely ground active ingredient is intimately mixed with the adjuvants, giving a suspension concentrate from which suspensions of any desired concentration can be obtained by dilution with water.

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• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• General Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)

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• 1996
  • 1996-01-31 AU AU46648/96A patent/AU4664896A/en not_active Abandoned
  • 1996-01-31 US US08/894,177 patent/US5962371A/en not_active Expired - Lifetime
  • 1996-01-31 EP EP96902262A patent/EP0809436B1/de not_active Expired - Lifetime
  • 1996-01-31 AT AT96902262T patent/ATE189946T1/de active
  • 1996-01-31 BR BR9606948A patent/BR9606948A/pt active IP Right Grant
  • 1996-01-31 WO PCT/EP1996/000398 patent/WO1996025043A1/en active IP Right Grant
  • 1996-01-31 DE DE69606855T patent/DE69606855D1/de not_active Expired - Lifetime
  • 1996-02-09 AR ARP960101341A patent/AR000926A1/es unknown
  • 1996-02-12 ZA ZA961106A patent/ZA961106B/xx unknown

Patent Citations (8)

Non-Patent Citations (3)

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